A box of 9mm ammo at High Bridge Arms in San Francisco “has a shelf life of about five minutes,” according to Steve Alcairo, the general manager of the city’s only gun store.

Speaking to the San Francisco Chronicle, Alcairo said, “It used to take us a month to sell 5,000 rounds. Now we go through that in a week–when we can get them.”

The demand is not limited to San Francisco. It can be found in any city or town in the United States. And it is not exclusive to gun stores; police departments are feeling a squeeze, as well.

On April 8, Breitbart News reported that ammo manufacturers were reacting to this ongoing demand by enlarging work forces and, in many cases, producing ammunition 24 hours a day.

At that time, ammo makers like Hornady, Remington, and Black Hills all said they were able to find ways to meet such panic-buying onslaughts in the past. However, many of them said they have never seen a panic-driven climate like today’s.